Invention Grant
- Patent Title: Integral service refrigerant pump
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Application No.: US16609141Application Date: 2018-05-23
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Publication No.: US11236933B2Publication Date: 2022-02-01
- Inventor: Martin D. Bryant , Hsihua Li , Areeya Xiong
- Applicant: Carrier Corporation
- Applicant Address: US FL Palm Beach Gardens
- Assignee: Carrier Corporation
- Current Assignee: Carrier Corporation
- Current Assignee Address: US FL Palm Beach Gardens
- Agency: Cantor Colburn LLP
- International Application: PCT/US2018/034149 WO 20180523
- International Announcement: WO2018/217904 WO 20181129
- Main IPC: F25B41/00
- IPC: F25B41/00 ; F25B43/02 ; F24F5/00 ; F25B31/00 ; F25B49/02 ; F25B41/40

Abstract:
A chiller system is provided and includes a chiller, a lubrication assembly and a controller. The chiller includes a compressor, a condenser, an expansion assembly and an evaporator in fluid communication with one another. The lubrication assembly is operably coupled to the compressor, the condenser and the evaporator and is formed to define first-third pathways via a three-way valve and a fourth pathway. The first pathway is configured for pumping refrigerant through the chiller, the second pathway is configured for pre-storing refrigerant in the chiller, the third pathway is configured for removing refrigerant from the chiller and the fourth pathway is configured for charging refrigerant into the chiller. The controller is configured to control the lubrication assembly to selectively engage one of the first-fourth pathways.
Information query